Modular public telephone



FIG. 1 is a front elevational view of a modular public telephone showing my new design;

FIG. 2 is a right side elevational view thereof;

FIGS. 3 and 4 are respectively top and bottom plan views thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a bottom and front perspective view thereof. 

The ornamental design for a modular public telephone, as shown and described. 